Add primitive types to String conversion. (#50)

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt

@@ -353,15 +353,15 @@ internal class CodeGeneratorVisitor(val context: Context) : IrElementVisitorVoid
                 true  -> return LLVMConstInt(LLVMInt1Type(), 1, 1)
                 false -> return LLVMConstInt(LLVMInt1Type(), 0, 1)
             }
-            IrConstKind.Char   -> TODO()
+            IrConstKind.Char   -> return LLVMConstInt(LLVMInt16Type(), (value.value as Char).toLong(), 0)
             IrConstKind.Byte   -> return LLVMConstInt(LLVMInt32Type(), (value.value as Byte).toLong(), 1)
             IrConstKind.Short  -> return LLVMConstInt(LLVMInt32Type(), (value.value as Short).toLong(), 1)
             IrConstKind.Int    -> return LLVMConstInt(LLVMInt32Type(), (value.value as Int).toLong(), 1)
             IrConstKind.Long   -> return LLVMConstInt(LLVMInt64Type(), value.value as Long, 1)
             IrConstKind.String ->
                 return context.staticData.createStringLiteral(value as IrConst<String>).getLlvmValue()
-            IrConstKind.Float  -> TODO()
+            IrConstKind.Float  -> return LLVMConstRealOfString(LLVMFloatType(), (value.value as Float).toString())
-            IrConstKind.Double -> TODO()
+            IrConstKind.Double -> return LLVMConstRealOfString(LLVMDoubleType(), (value.value as Double).toString())
         }
         TODO()
     }

backend.native/tests/build.gradle

@@ -186,6 +186,12 @@ task hello3(type: RunKonanTest) {
     source = "runtime/basic/hello3.kt"
 } */
 
+
+task tostring0(type: RunKonanTest) {
+    goldValue = "127\n255\n239\nA\n1122334455\n112233445566778899\n1E+27\n1E-300\ntrue\nfalse\n"
+    source = "runtime/basic/tostring0.kt"
+}
+
 task if_else(type: UnitKonanTest) {
     source = "codegen/branching/if_else.kt"
 }

backend.native/tests/runtime/basic/tostring0.kt

@@ -0,0 +1,14 @@
+fun main(args : Array<String>) {
+    println(127.toByte().toString())
+    println(255.toByte().toString())
+    println(239.toShort().toString())
+    println('A'.toString())
+    // println('Ё'.toString())
+    // println('ト'.toString())
+    println(1122334455.toString())
+    println(112233445566778899.toString())
+    println(1e27.toFloat().toString())
+    println(1e-300.toDouble().toString())
+    println(true.toString())
+    println(false.toString())
+}

runtime/src/main/cpp/ToString.cpp

@@ -0,0 +1,74 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "Assert.h"
+#include "Exceptions.h"
+#include "Memory.h"
+#include "Natives.h"
+#include "Types.h"
+
+namespace {
+
+KString makeString(const char* cstring) {
+  uint32_t length = strlen(cstring);
+  ArrayHeader* result = ArrayContainer(
+      theStringTypeInfo, length).GetPlace();
+  memcpy(
+      ByteArrayAddressOfElementAt(result, 0),
+      cstring,
+      length);
+  return result;
+}
+
+} // namespace
+
+extern "C" {
+
+KString Kotlin_Byte_toString(KByte value) {
+  char cstring[8];
+  snprintf(cstring, sizeof(cstring), "%d", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Char_toString(KChar value) {
+  char cstring[5];
+  // TODO: support UTF-8.
+  snprintf(cstring, sizeof(cstring), "%c", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Short_toString(KShort value) {
+  char cstring[8];
+  snprintf(cstring, sizeof(cstring), "%d", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Int_toString(KInt value) {
+  char cstring[16];
+  snprintf(cstring, sizeof(cstring), "%d", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Long_toString(KLong value) {
+  char cstring[32];
+  snprintf(cstring, sizeof(cstring), "%lld", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Float_toString(KFloat value) {
+  char cstring[32];
+  snprintf(cstring, sizeof(cstring), "%G", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Double_toString(KDouble value) {
+  char cstring[32];
+  snprintf(cstring, sizeof(cstring), "%G", value);
+  return makeString(cstring);
+}
+
+KString Kotlin_Boolean_toString(KBool value) {
+  return  makeString(value ? "true" : "false");
+}
+
+} // extern "C"

runtime/src/main/kotlin/kotlin/Boolean.kt

@@ -26,4 +26,8 @@ public class Boolean : Comparable<Boolean> {
     external public infix fun xor(other: Boolean): Boolean
 
     external public override fun compareTo(other: Boolean): Int
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Boolean_toString")
+    external public override fun toString(): String
 }

runtime/src/main/kotlin/kotlin/Char.kt

@@ -76,5 +76,8 @@ public class Char : Comparable<Char> {
         public const val MAX_SURROGATE: Char = MAX_LOW_SURROGATE
     }
 
+    // Konan-specific.
+    @SymbolName("Kotlin_Char_toString")
+    external public override fun toString(): String
 }
 

runtime/src/main/kotlin/kotlin/Primitives.kt

@@ -193,7 +193,7 @@ public class Byte : Number(), Comparable<Byte> {
     external public override fun toDouble(): Double
 
     // Konan-specific.
-    @SymbolName("Kotlin_Int_toString")
+    @SymbolName("Kotlin_Byte_toString")
     external public override fun toString(): String
 }
 
@@ -388,6 +388,10 @@ public class Short : Number(), Comparable<Short> {
     external public override fun toFloat(): Float
     @SymbolName("Kotlin_Short_toDouble")
     external public override fun toDouble(): Double
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Short_toString")
+    external public override fun toString(): String
 }
 
 /**
@@ -603,6 +607,10 @@ public class Int : Number(), Comparable<Int> {
     external public override fun toFloat(): Float
     @SymbolName("Kotlin_Int_toDouble")
     external public override fun toDouble(): Double
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Int_toString")
+    external public override fun toString(): String
 }
 
 /**
@@ -818,6 +826,10 @@ public class Long : Number(), Comparable<Long> {
     external public override fun toFloat(): Float
     @SymbolName("Kotlin_Long_toDouble")
     external public override fun toDouble(): Double
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Long_toString")
+    external public override fun toString(): String
 }
 
 /**
@@ -1018,6 +1030,10 @@ public class Float : Number(), Comparable<Float> {
     external public override fun toFloat(): Float
     @SymbolName("Kotlin_Float_toDouble")
     external public override fun toDouble(): Double
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Float_toString")
+    external public override fun toString(): String
 }
 
 /**
@@ -1218,4 +1234,8 @@ public class Double : Number(), Comparable<Double> {
     external public override fun toFloat(): Float
     @SymbolName("Kotlin_Double_toDouble")
     external public override fun toDouble(): Double
+
+    // Konan-specific.
+    @SymbolName("Kotlin_Double_toString")
+    external public override fun toString(): String
 }